WILLEMSTAD, Curacao (AP) -- Police in Curacao say they have arrested the owner of a lottery business in connection with the 2013 killing of a prominent opposition lawmaker.

Authorities said Tuesday that Robby dos Santos has been detained, though he has not been charged.

He is the second person arrested in the case in less than a week. Police on Thursday arrested former Finance Minister George Jamaloodin as part of the investigation.

Parliament member Helmin Wiels was shot five times on a public beach in broad daylight in May 2013. The 54-year-old politician was the leader of the Pueblo Soberano political party, which supports Curacao's independence from the Netherlands.